CN1868552A - Catheter - Google Patents
Catheter Download PDFInfo
- Publication number
- CN1868552A CN1868552A CNA2006100802385A CN200610080238A CN1868552A CN 1868552 A CN1868552 A CN 1868552A CN A2006100802385 A CNA2006100802385 A CN A2006100802385A CN 200610080238 A CN200610080238 A CN 200610080238A CN 1868552 A CN1868552 A CN 1868552A
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- Prior art keywords
- mentioned
- thread
- conduit
- label
- internal layer
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/32—General characteristics of the apparatus with radio-opaque indicia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
- A61M25/0012—Making of catheters or other medical or surgical tubes with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
Abstract
A catheter includes an inner layer, an outer layer, a reinforcement layer located between the inner layer and the outer layer, and a marker composed of a contrast material for confirming the position of the distal end portion of the catheter from outside the living body. The reinforcement layer is composed of a spiral first filamentous member, with a gap provided between those portions of the first filamentous member which are adjacent to each other along the longitudinal direction of the catheter. The marker is formed by spirally winding a second filamentous member having a filament diameter smaller than the gap, and has a portion in close contact with the inner layer in the gap.
Description
Technical field
The present invention relates to a kind of conduit, it comprises: internal layer, skin, the layers of reinforcement between internal layer and skin and constituted, be used for from the label of external affirmation catheter proximal end portion position by the material with radiography.
Background technology
In recent years, often taked similar PTCA operation (percutaneous coronary angioplasty) this treatment of carrying out at being difficult to carry out operating position or for reducing the treatment that the damage of human body is carried out.When carrying out this treatment, utilize guiding wire that catheter proximal end portion is guided near the angiostenosis place.
As such conduit, the conduit of putting down in writing in the description that No. the 5951539th, known for example United States Patent (USP).The conduit of putting down in writing in the description that No. the 5951539th, United States Patent (USP) has internal layer, skin, the layers of reinforcement between internal layer and skin and is arranged at catheter proximal end portion and has the label of radiography.This label is the parts that are used for from external affirmation catheter proximal end portion position (position).
Yet, because this conduit forms according to internal layer, skin, layers of reinforcement, this sequential cascade of label, so the external diameter of this conduit is big (slightly), is difficult to sometimes by the less target site of diameter (internal diameter), for example angiostenosis portion, blood vessel acra etc.In addition, for ease of confirming the position of catheter proximal end portion, must be bigger with the width setup that constitutes the band (band) of this label, thereby exist the affected problem of catheter proximal end portion flexibility.
Summary of the invention
The object of the present invention is to provide a kind of conduit, this conduit helps the diameter refinement, and the flexibility excellence.
This purpose can reach by following (1)～(12) of the present invention.
(1) a kind of conduit has internal layer, skin, the layers of reinforcement between internal layer and skin and label, and described label is made of the material with radiography, is used for from the position of the leading section of external affirmation conduit, and this conduit is characterised in that,
Above-mentioned layers of reinforcement is made of spiral helicine the 1st thread like body, and the adjacent part of above-mentioned the 1st thread like body on above-mentioned catheter length direction is provided with the gap each other,
Above-mentioned label is wound into helical form with linear diameter less than the 2nd thread like body in above-mentioned gap and obtains, and this label has the part that closely contacts with above-mentioned internal layer in above-mentioned gap.
(2) as the described conduit of above-mentioned technical scheme (1), wherein, above-mentioned label has the part that closely contacts with above-mentioned layers of reinforcement.
(3) as above-mentioned technical scheme (1) or (2) described conduit, wherein, above-mentioned the 2nd thread like body is reeled by the mode that contacts with each other with above-mentioned the 2nd thread like body adjacent on the length direction of above-mentioned conduit and is formed.
(4) as each described conduit in the above-mentioned technical scheme (1) to (3), wherein, the shape of cross section of above-mentioned the 2nd thread like body is circular or ellipse.
(5) as each described conduit in the above-mentioned technical scheme (1) to (4), wherein, the distance between the front end of above-mentioned label and the front end of above-mentioned conduit is below 1mm.
(6) as each described conduit in the above-mentioned technical scheme (1) to (5), wherein, the total length of above-mentioned label is 0.5～1mm.
(7) as each described conduit in the above-mentioned technical scheme (1) to (6), wherein, the constituent material of above-mentioned label is gold, platinum, tungsten, perhaps for comprising any the alloy in these materials at least.
(8) as each described conduit in the above-mentioned technical scheme (1) to (7), wherein, the shape of cross section of above-mentioned the 1st thread like body is a flat pattern.
(9) as the described conduit of above-mentioned technical scheme (8), wherein, the thickness of above-mentioned the 1st thread like body is below 80% of linear diameter of above-mentioned the 2nd thread like body.
(10) as each described conduit in the above-mentioned technical scheme (1) to (7), wherein, the shape of cross section of above-mentioned the 1st thread like body is a circular.
(11) as each described conduit in the above-mentioned technical scheme (1) to (10), wherein, the direction that above-mentioned the 1st thread like body is identical towards each other with above-mentioned the 2nd thread like body is reeled.
(12) as each described conduit in the above-mentioned technical scheme (1) to (11), wherein, above-mentioned gap is 2～20 times of linear diameter of above-mentioned the 2nd thread like body.
By adopting the present invention,,, promptly help the diameter refinement of conduit so can set the external diameter of conduit less owing in the mutual gap of the 1st thread like body that constitutes layers of reinforcement, have label and the part that internal layer closely contacts.
In addition, because label is a helical form, and is made of the 2nd thread like body less than above-mentioned gap, so conduit can obtain outstanding flexibility, and its tracking and safety to blood vessel improves.
Description of drawings
Fig. 1 is the overall diagram of the 1st embodiment of expression conduit of the present invention.
Fig. 2 is the amplification view in zone " A " among Fig. 1.
Fig. 3 is the enlarged drawing in the zone " B " among Fig. 2.
Fig. 4 is near the cutaway view of leading section of expression conduit of the present invention (the 2nd embodiment).
The specific embodiment
Below, the preferred implementation shown in is elaborated to conduit of the present invention with reference to the accompanying drawings.
(the 1st embodiment)
Fig. 1 is the overall diagram of the 1st embodiment of expression conduit of the present invention, and Fig. 2 is the amplification view in the zone " A " among Fig. 1, and Fig. 3 is the enlarged drawing in the zone " B " among Fig. 2.For ease of the explanation, with the right side among Fig. 1～Fig. 3 be called " cardinal extremity ", the left side is called " front end ".
To its front end 33, be formed with tube chamber (inner chamber) 31 from the cardinal extremity 34 of catheter main body 3 in inside.When conduit 2 inserted blood vessel, guiding wire penetrated in the tube chamber 31.In addition, tube chamber 31 also can be used as the path of contrast agent, medicinal liquid, ablution etc.
Handle 7 can be used as the insertion mouth when inserting above-mentioned guiding wire in the tube chamber 31, the inlet when all right conduct is injected contrast agent, medicinal liquid, ablution etc. in the tube chamber 31, in addition, the grip part when handle 7 also can be used as conduit 2 implementation and operations.
As shown in Figures 2 and 3, catheter main body 3 has: internal layer 5a, outer 5b, the layers of reinforcement 6 between internal layer 5a and outer 5b and the label 8 that is made of the material with radiography.
In schematic structure, the thickness of internal layer 5a (bed thickness) is than the thin thickness of outer 5b.
The constituent material of internal layer 5a and outer 5b for example can be enumerated: polyethylene, polypropylene, the rare copolymer of ethylene-third, the ethene-vinyl acetate copolymer, the polyolefin of cross-linking type ethene-vinyl acetate copolymer etc., polrvinyl chloride, polyester (PET, PBT, PEN etc.), polyamide, polyimides, polyurethane, polystyrene, PC, fluororesin (politef etc.), silicones, silicone rubber, and various lactoprenes (for example: polyurethane series, polyamide series, thermoplasticity lactoprenes such as polyester series) or the like, can be with above-mentioned being used in combination more than a kind or 2 kinds in these.The constituent material of internal layer 5a and outer 5b both can be the same or different.
Under the internal layer 5a situation different, can use the different material of flexibility (rigidity) with the constituent material of outer 5b.For example, under the situation of structure shown in Figure 2 (thickness of internal layer 5a is than the thin thickness of outer 5b), constitute outer 5b by adopting material than the richer flexibility of internal layer 5a, can make catheter main body 3 especially its leading section 32 be rich in flexibility.
In addition, materials such as politef, fluorinated ethylene-propylene rare (FEP), high density polyethylene (HDPE) constitute internal layer 5a by for example adopting, and the synthetic resin of aftermentioned hydrophilic material constitutes outer 5b for example to adopt polyurethane rubber, polyamide elastomer, lactoprene etc. to be easy in its surface fixedly, can improve the sliding of guiding wire in the tube chamber 31 of catheter main body 3, and the sliding can improve catheter main body 3 and insert blood vessels the time, thereby can implement to insert operation more smooth and easy, reliably.
The thickness of internal layer 5a is in the above description than the thin thickness of outer 5b, but is not limited only to this, for example can be thicker than the thickness of outer 5b, can also with the thickness of outer 5b about equally.
As shown in Figure 2, in the tube wall inside of catheter main body 3, (burying underground) promptly is set between internal layer 5a and the outer 5b layers of reinforcement 6.Whereby, the moment of torsion transmission property of conduit 2, pushing property, anti-kink, servo-actuated etc. can be improved, the operability when inserting blood vessel can be improved, and, the resistance to pressure in the time of also can improving tube chamber 31 intrinsic pressure (hydraulic pressure) rising.
This layers of reinforcement 6 is made of spiral helicine the 1st thread like body 61, and during from front observation conduit 2, the coiling direction of thread like body is for being rotated counterclockwise.In addition, in the layers of reinforcement 6, between each adjacent on the length direction of conduit 2 the 1st thread like body 61, be provided with gap 62.The distance in each gap 62 (width) p approximate equality.
In addition, the shape of cross section of the 1st thread like body 61 is for example rectangle, oval and so on flat pattern.Like this, the part that is provided with layers of reinforcement 6 (the 1st thread like body 61) on catheter main body 3 can prevent or suppress external diameter and increase, thereby helps the diameter refinement of catheter main body 3.
This layers of reinforcement 6 has following advantage, promptly, owing to can suitably select material, the linear diameter of the 1st thread like body 61, the density conditions such as (depending on the spiral helicine number of turns etc.) that is provided with of the 1st thread like body 61, thereby can be easily the intensity of layers of reinforcement 6 be adjusted into and wishes intensity.
The constituent material of the 1st thread like body 61 for example can be enumerated: rustless steel, tungsten, piano wire, Ni-Ti are metal materials such as alloy, fortified resin fiber, carbon fibers etc. such as aromatics, quebrachite.
As shown in Figures 2 and 3, on the leading section 32 of catheter main body 3, (burying underground) is set the label 8 that has radiography, especially has x-ray imaging.Like this, can under the perspective of X ray, catheter main body 3 leading sections 32 be confirmed in the intravital position of body from external.
This label 8 is made of spiral helicine the 2nd thread like body 81.As shown in Figure 3, the linear diameter Φ d of the 2nd thread like body 81 is set to less than distance p (gap 62).
This label 8 is divided into internal layer adhesive portion 82 and layers of reinforcement adhesive portion 83.Internal layer adhesive portion 82 is the positions (part) that closely contact with internal layer 5a in gap 62, and layers of reinforcement adhesive portion 83 is the positions (part) that closely contact with layers of reinforcement 6.
By label 8 is closely contacted with internal layer 5a and layers of reinforcement 6, be the position that is provided with label 8 of catheter main body 3 at the leading section 32 of catheter main body 3, can prevent or suppress external diameter and increase, thereby help the diameter refinement of catheter main body 3.
In addition, the 2nd thread like body 81 is wound into the state that the adjacent part of the 2nd thread like body 81 on conduit 2 length directions is in contact with one another, and promptly closes the round attitude.
Whereby, the quantity that is provided with that enters the 2nd thread like body 81 in gap 62 increases, i.e. the shared increasing proportion of internal layer adhesive portion 82 in the label 8.Thereby, with compare by the part of internal layer 5a, layers of reinforcement 6, label 8 (layers of reinforcement adhesive portion 83) and these 4 layers of formations of outer 5b, part by internal layer 5a, label 8 (internal layer adhesive portion 82) and these 3 layers of formations of outer 5b is more, and the external diameter that can prevent or suppress leading section 32 effectively increases.Like this, just help the diameter refinement of catheter main body 3 really.
Though for being not particularly limited apart from p of gap 62, preference is more preferably its 4～10 times as being 2～20 times of linear diameter Φ d of the 2nd thread like body 81.
If apart from the not enough above-mentioned lower limit of p, then label 8 reduces with the bond area of internal layer 5a, and promptly internal layer adhesive portion 82 shared ratios reduce in the label 8, is difficult to then prevent that the external diameter of leading section 32 from increasing.Therefore, may cause the diameter refinement of catheter main body 3 comparatively difficult.In addition, if surpass above-mentioned higher limit,, thereby may reduce the reinforced effects of layers of reinforcement 6 then because gap 62 becomes big (broadening) apart from p.
In addition, close round, be easy under radioscopy, confirm the position of the leading section 32 of catheter main body 3, i.e. label 8 (the 2nd thread like body 81) by the 2nd thread like body 81 is become.
In addition, the shape of cross section of the 2nd thread like body 81 is roughly circular.So, because label 8 is easy to bending, thereby make that the flexibility of conduit 2 (catheter main body 3) is excellent more.
In addition, though be not particularly limited for the thickness t of the 1st thread like body 61, preference is as being below 80% of linear diameter Φ d of the 2nd thread like body 81, be more preferably its 20～50%.
During value in thickness t is above-mentioned scope, then can form in 4 layers the part above-mentioned, the ratio that the bed thickness of layers of reinforcement 6 is shared is set lessly, thereby positively helps the diameter refinement of catheter main body 3.
In addition, though for being not particularly limited apart from a between the front end 33 of label 8 front ends 84 and conduit 2, preference is as below 1mm, more preferably 0.5～1mm.During value in distance a is above-mentioned scope, under radioscopy, can confirm to be positioned near the position the front end 33 of the intravital conduit 2 of body effectively.
In addition, though be not particularly limited for the total length L of label 8, preference is as being 0.5～1mm, more preferably 0.7～1mm.
During value in total length L is above-mentioned scope, under radioscopy, can confirm near the position the front end 33 of conduit 2 more effectively.
In addition, the coiling direction of the 2nd thread like body 81 is identical direction with the coiling direction of the 1st thread like body 61 preferably.Like this, can make conduit 2 crooked well.
In addition, label 8 can be that noble metals such as alloy, gold, platinum, tungsten or the various metal materials such as alloy that comprise them constitute by for example rustless steel, superelastic alloy, cobalt.Particularly, when its X ray such by noble metal can't transmission material situation about constituting under, label 8 self possesses x-ray imaging, can confirm the position of the leading section 32 of conduit 2 effectively under radioscopy, and can insert in the body effectively.
In the conduit 2 of this structure, owing to being constituted as with internal layer 5a, label 8 closely contacts with layers of reinforcement 6, thus can set the external diameter of catheter main body 3 less, thereby help the diameter refinement of catheter main body 3.In addition, because catheter main body 3 has been realized the diameter refinement, so this catheter main body 3 can easily pass through angiostenosis portion and the narrow and small position of acra uniform internal diameter.
In addition, because label 8 and layers of reinforcement 6 are made of spiral helicine thread like body respectively,, promptly has flexibility so the leading section 32 of catheter main body 3 is easy to bending.
And label 8 can also be made of the material that for example has radiography at the angiographic method except that X ray among CT scan, the MRI etc., as long as just can confirm that its position can.
In addition, the shape of cross section of the 2nd thread like body 81 is not limited to roughly rounded, also can be for example oval.
In addition, be not particularly limited, for example can enumerate following method for the manufacture method of catheter main body 3.
[1] at first, internal layer 5a forward end direction (extreme direction) constant speed in rotation is advanced, the 1st thread like body 61 (layers of reinforcement 6) is reeled with preset distance p.Like this, just, layers of reinforcement 6 is arranged on the surface of internal layer 5a.
[2] next, make parts under the state of above-mentioned operation [1] in rotation, advance, the 2nd thread like body 81 is wound as closes the round attitude with the speed forward end direction (extreme direction) lower slightly than the speed in the above-mentioned operation [1].Like this, label 8 just becomes and internal layer 5a and layers of reinforcement 6 tight state of contact.
[3] then, outer 5b is covered on the state parts down of above-mentioned operation [2], can be by for example heating so that its incorporate method is made them.At this moment, also can use heat-shrinkable tube as outer 5b.In addition, the arbitrary layer among internal layer 5a and the outer 5b also can be by for example apply, flood, the formed coating of coating method such as injection.
In above-mentioned operation [2], in the strain zone, the 2nd thread like body 81 is applied tension force, simultaneously the 2nd thread like body 81 is reeled.Like this,, also can not make the 2nd thread like body 81 (label 8) that plastic deformation takes place, thereby the 2nd thread like body 81 recovers to close the round attitude even integrally bendings take place for catheter main body 3, can keep its with internal layer 5a and layers of reinforcement 6 between tight the contact.
In addition, preferably on the surface (surface of leading section 32 at least) of catheter main body 3, form the cover layer that constitutes by the material that can reduce friction (below be called " low-friction material ").Like this, the sliding in the time of can improving catheter main body 3 insertion blood vessels especially can make it more smooth and easy passing through of angiostenosis portion.
The preference of low-friction material can be enumerated hydrophilic material or hydrophobic material.Preferred hydrophilic material especially wherein.
For example can enumerate as this hydrophilic material (hydrophilic polymer): cellulose-based polymer substance, polyoxyethylene is a polymer substance, anhydrous maleic acid is polymer substance (for example ethylene methacrylic ether-anhydrous maleic acid copolymer such as anhydrous maleic acid copolymer), the acrylamide polymer substance (for example: polyacrylamide, the block copolymer of poly (glycidyl methacrylate)-dimethyl propylene amide (PGMA-DMAA)), water-soluble nylon, polyvinyl alcohol, polyvinylpyrrolidone etc.
Such hydrophilic material under most situation, owing to moistening (suction) brings into play lubricity, can reduce and blood vessel between frictional resistance (resistance to sliding).Thus, when catheter main body 3 was inserted blood vessel, the sliding of catheter main body 3 raise, thereby the operability of conduit is better.
Such hydrophilic material (perhaps hydrophobic material) layer is arranged on the surface of leading section at least 32 of catheter main body 3, also can be arranged in the length range of catheter main body 3.
Aforesaid cover layer can by for example apply, flood, coating method such as injection forms.
(the 2nd embodiment)
Fig. 4 is near the cutaway view of leading section of expression conduit of the present invention (the 2nd embodiment).For convenience of description, the right side among Fig. 4 is called " cardinal extremity ", the left side is called " front end ".
Below, with reference to this figure the 2nd embodiment of conduit of the present invention is described, be that the center describes only at this, and something in common is omitted explanation with difference with above-mentioned embodiment.
Present embodiment and above-mentioned the 1st embodiment are except that tag structure is different, and all the other are all identical.
In catheter main body 3a shown in Figure 4, label 8a is different with the label 8 of above-mentioned the 1st embodiment, and it has omitted layers of reinforcement adhesive portion 83, only has internal layer adhesive portion 82.That is, label 8a closely contacts with internal layer 5a in internal layer 5a and the layers of reinforcement 6.
Thus, these the 4 layers of parts that is become of internal layer 5a, layers of reinforcement 6, label 8 and outer 5b that resemble the catheter main body 3 of above-mentioned the 1st embodiment are omitted, thereby the external diameter that can prevent or suppress the leading section 32 of catheter main body 3 effectively increases.Like this, just help the diameter refinement of conduit 2 effectively.
Abovely according to illustrated embodiment conduit of the present invention is illustrated, but the present invention is not limited only to this, the each several part that constitutes conduit can be replaced by the arbitrary structures parts that can bring into play effect same.In addition, also can add structure member arbitrarily.
In addition, internal layer or outer in illustrated structure is to be provided with in the uniform mode of thickness in the length range of catheter main body, but be not limited only to this, for example, they can also be positioned at the leading section of catheter main body, and thickness is along with the preceding extreme direction of trend reduces gradually.
In addition, the 1st thread like body that constitutes layers of reinforcement is in schematic structure, and its coiling direction is for being rotated counterclockwise, but is not limited only to this, also can be clockwise direction and rotates.
Each gap 62 be not limited in approximate equality apart from p, for example, apart from p can along with the trend before extreme direction increase gradually.Under the situation that distance p increases gradually along with extreme direction before tending to, can make enhanced degree (effect) reduce lentamente along with the preceding extreme direction of trend, like this, the leading section 62 of conduit 2 can have good flexibility.
In addition, the shape of cross section of the 1st thread like body is not limited only to flat pattern, for example, can also be other shapes such as circular.Shape of cross section at the 1st thread like body is under the situation of circular, has the advantage that can further improve anti-kink.
The coiling direction of the 2nd thread like body of formation label is not limited in identical with the coiling direction of the 1st thread like body, also can be different directions, and is promptly reverse.
In addition, label can also be connected (closely contact) by adhesive phase with internal layer and/or layers of reinforcement.
Claims (12)
1. a conduit has internal layer, skin, the layers of reinforcement between internal layer and skin and label, and described label is made of the material with radiography, is used for from the position of the leading section of external affirmation conduit, and this conduit is characterised in that,
Above-mentioned layers of reinforcement is made of spiral helicine the 1st thread like body, and the adjacent part of above-mentioned the 1st thread like body on above-mentioned catheter length direction is provided with the gap each other,
Above-mentioned label is wound into helical form with linear diameter less than the 2nd thread like body in above-mentioned gap and obtains, and this label has the part that closely contacts with above-mentioned internal layer in above-mentioned gap.
2. conduit as claimed in claim 1, wherein, above-mentioned label has the part that closely contacts with above-mentioned layers of reinforcement.
3. conduit as claimed in claim 1 or 2, wherein, above-mentioned the 2nd thread like body is reeled by the mode that contacts with each other with above-mentioned the 2nd thread like body adjacent on the length direction of above-mentioned conduit and is formed.
4. as each described conduit in the claim 1 to 3, wherein, the shape of cross section of above-mentioned the 2nd thread like body is circular or ellipse.
5. as each described conduit in the claim 1 to 4, wherein, the distance between the front end of above-mentioned label and the front end of above-mentioned conduit is below 1mm.
6. as each described conduit in the claim 1 to 5, wherein, the total length of above-mentioned label is 0.5～1mm.
7. as each described conduit in the claim 1 to 6, wherein, the constituent material of above-mentioned label is gold, platinum, tungsten, perhaps for comprising any the alloy in these materials at least.
8. as each described conduit in the claim 1 to 7, wherein, the shape of cross section of above-mentioned the 1st thread like body is a flat pattern.
9. conduit as claimed in claim 8, wherein, the thickness of above-mentioned the 1st thread like body is below 80% of linear diameter of above-mentioned the 2nd thread like body.
10. as each described conduit in the claim 1 to 7, wherein, the shape of cross section of above-mentioned the 1st thread like body is a circular.
11. as each described conduit in the claim 1 to 10, wherein, the direction that above-mentioned the 1st thread like body is identical towards each other with above-mentioned the 2nd thread like body is reeled.
12. as each described conduit in the claim 1 to 11, wherein, above-mentioned gap is 2～20 times of linear diameter of above-mentioned the 2nd thread like body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005141434A JP4771456B2 (en) | 2005-05-13 | 2005-05-13 | catheter |
| JP141434/2005 | 2005-05-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1868552A true CN1868552A (en) | 2006-11-29 |
| CN1868552B CN1868552B (en) | 2010-05-12 |
Family
ID=36577315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100802385A Active CN1868552B (en) | 2005-05-13 | 2006-05-12 | Catheter |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US8157790B2 (en) |
| EP (1) | EP1721631B1 (en) |
| JP (1) | JP4771456B2 (en) |
| CN (1) | CN1868552B (en) |
| AT (1) | ATE422929T1 (en) |
| DE (1) | DE602006005189D1 (en) |
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| CN103619398A (en) * | 2011-06-15 | 2014-03-05 | 泰尔茂株式会社 | Sheath for introducer and introducer assembly |
| US9320873B2 (en) | 2011-06-15 | 2016-04-26 | Terumo Kabushiki Kaisha | Introducer sheath and introducer assembly |
| CN105999517A (en) * | 2015-03-27 | 2016-10-12 | 朝日英达科株式会社 | Balloon catheter |
| CN108276638A (en) * | 2017-12-29 | 2018-07-13 | 深圳职业技术学院 | A kind of tubing and preparation method thereof with X-ray developing function |
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| US20090149834A1 (en) * | 2007-12-07 | 2009-06-11 | Gerald Moss | Reinforced enteral feeding catheter |
| JP5672994B2 (en) * | 2010-11-09 | 2015-02-18 | 住友ベークライト株式会社 | CATHETER AND METHOD FOR PRODUCING CATHETER |
| US8652098B2 (en) * | 2011-03-08 | 2014-02-18 | Abbott Cardiovascular Systems Inc. | Catheter with radiopaque coil |
| JP5869235B2 (en) * | 2011-06-02 | 2016-02-24 | 株式会社グッドマン | Medical instruments |
| US20130197353A1 (en) * | 2012-01-27 | 2013-08-01 | Randolf Von Oepen | Radiopaque marker for a catheter |
| US9504476B2 (en) * | 2012-10-01 | 2016-11-29 | Microvention, Inc. | Catheter markers |
| US9192499B2 (en) * | 2013-03-11 | 2015-11-24 | Cook Medical Technologies Llc | Inner catheter for a self-expanding medical device delivery system with a closed coil wire |
| EP2979725B1 (en) * | 2013-03-27 | 2018-09-19 | Piolax Medical Devices, Inc. | Tube for medical use |
| JP6308343B2 (en) * | 2013-03-29 | 2018-04-11 | 日本ゼオン株式会社 | Catheter manufacturing method |
| EP3056238B1 (en) * | 2015-02-13 | 2019-08-28 | Asahi Intecc Co., Ltd. | Catheter |
| JP6426068B2 (en) | 2015-08-10 | 2018-11-21 | 朝日インテック株式会社 | Catheter and balloon catheter |
| JP6964134B2 (en) | 2016-07-13 | 2021-11-10 | パーヒューズ・リミテッド | Highly flexible, kinking resistant catheter shaft |
| JP6886471B2 (en) | 2016-09-05 | 2021-06-16 | テルモ株式会社 | catheter |
| TW201825137A (en) * | 2016-11-25 | 2018-07-16 | 日商住友電木股份有限公司 | Catheter and process for producing catheter |
| US10512756B2 (en) | 2017-01-12 | 2019-12-24 | Cardiac Dimensions Pty. Ltd. | Sizing catheters |
| CN111465420B (en) | 2017-12-15 | 2023-04-18 | 佩尔福兹有限公司 | Improved catheter and apparatus and system incorporating same |
| CN108514677A (en) * | 2018-04-28 | 2018-09-11 | 业聚医疗器械(深圳)有限公司 | A kind of microtubular |
| JP7251765B2 (en) * | 2019-01-23 | 2023-04-04 | 株式会社東海メディカルプロダクツ | CATHETER AND CATHETER MAKING METHOD |
| CN211884905U (en) | 2019-08-22 | 2020-11-10 | 贝克顿·迪金森公司 | Balloon dilatation catheter and balloon thereof |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62261371A (en) * | 1986-05-08 | 1987-11-13 | テルモ株式会社 | Catheter |
| CN86207901U (en) * | 1986-10-06 | 1988-02-10 | 上海新亚医用橡胶厂 | Silicon rubber screwed pipe products |
| US4922924A (en) * | 1989-04-27 | 1990-05-08 | C. R. Bard, Inc. | Catheter guidewire with varying radiopacity |
| CN2111736U (en) * | 1990-07-19 | 1992-08-05 | 王知难 | Early diagnosis sampler for uterus |
| US5174302A (en) * | 1990-12-04 | 1992-12-29 | Cordis Corporation | Variable radiopacity guidewire with spaced highly radiopaque regions |
| US5630806A (en) * | 1991-08-13 | 1997-05-20 | Hudson International Conductors | Spiral wrapped medical tubing |
| US5540707A (en) * | 1992-11-13 | 1996-07-30 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
| JP3297268B2 (en) * | 1995-09-28 | 2002-07-02 | テルモ株式会社 | catheter |
| US6159187A (en) * | 1996-12-06 | 2000-12-12 | Target Therapeutics, Inc. | Reinforced catheter with a formable distal tip |
| US6152912A (en) * | 1997-06-10 | 2000-11-28 | Target Therapeutics, Inc. | Optimized high performance spiral-wound vascular catheter |
| US5951539A (en) * | 1997-06-10 | 1999-09-14 | Target Therpeutics, Inc. | Optimized high performance multiple coil spiral-wound vascular catheter |
| US5947940A (en) * | 1997-06-23 | 1999-09-07 | Beisel; Robert F. | Catheter reinforced to prevent luminal collapse and tensile failure thereof |
| US6171296B1 (en) * | 1998-04-28 | 2001-01-09 | Microtherapeutics, Inc. | Flow directed catheter |
| US6368316B1 (en) * | 1998-06-11 | 2002-04-09 | Target Therapeutics, Inc. | Catheter with composite stiffener |
| CN2345224Y (en) * | 1998-08-26 | 1999-10-27 | 仇德惠 | Therapeutic catheter used in esophageal cavity |
| DE69927474T2 (en) * | 1999-03-29 | 2006-07-06 | William Cook Europe A/S | A guidewire |
| EP1068876B1 (en) * | 1999-07-16 | 2004-01-14 | Terumo Kabushiki Kaisha | Catheter and method of manufacturing the same |
| JP4700173B2 (en) * | 1999-07-16 | 2011-06-15 | テルモ株式会社 | Catheter manufacturing method and catheter |
| JP3426174B2 (en) * | 1999-12-24 | 2003-07-14 | 朝日インテック株式会社 | Medical guidewire |
| US6520934B1 (en) * | 1999-12-29 | 2003-02-18 | Advanced Cardiovascular Systems, Inc. | Catheter assemblies with flexible radiopaque marker |
| JP3915862B2 (en) * | 2000-02-09 | 2007-05-16 | テルモ株式会社 | catheter |
| US20020156459A1 (en) * | 2001-04-20 | 2002-10-24 | Scimed Life Systems, Inc | Microcatheter with improved distal tip and transitions |
| US6636758B2 (en) * | 2001-05-01 | 2003-10-21 | Concentric Medical, Inc. | Marker wire and process for using it |
| US6638245B2 (en) * | 2001-06-26 | 2003-10-28 | Concentric Medical, Inc. | Balloon catheter |
| US6702782B2 (en) * | 2001-06-26 | 2004-03-09 | Concentric Medical, Inc. | Large lumen balloon catheter |
| US7065394B2 (en) * | 2001-12-12 | 2006-06-20 | Medtronic, Inc | Guide catheter |
| CN100431635C (en) * | 2002-11-26 | 2008-11-12 | 陈鹏宏 | Esophageal obstruction type ventilation pipe of larynx cover |
| JP2004275435A (en) * | 2003-03-14 | 2004-10-07 | Terumo Corp | Catheter |
-
2005
- 2005-05-13 JP JP2005141434A patent/JP4771456B2/en not_active Expired - Fee Related
-
2006
- 2006-05-09 AT AT06009537T patent/ATE422929T1/en not_active IP Right Cessation
- 2006-05-09 EP EP06009537A patent/EP1721631B1/en not_active Revoked
- 2006-05-09 DE DE602006005189T patent/DE602006005189D1/en active Active
- 2006-05-10 US US11/430,849 patent/US8157790B2/en active Active
- 2006-05-12 CN CN2006100802385A patent/CN1868552B/en active Active
-
2012
- 2012-03-12 US US13/417,733 patent/US8486048B2/en active Active
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|---|---|---|---|---|
| CN103619398A (en) * | 2011-06-15 | 2014-03-05 | 泰尔茂株式会社 | Sheath for introducer and introducer assembly |
| US9320873B2 (en) | 2011-06-15 | 2016-04-26 | Terumo Kabushiki Kaisha | Introducer sheath and introducer assembly |
| CN103619398B (en) * | 2011-06-15 | 2016-08-17 | 泰尔茂株式会社 | Introducer sheath and introducer assembly |
| US10799684B2 (en) | 2011-06-15 | 2020-10-13 | Terumo Kabushiki Kaisha | Introducer sheath and introducer assembly |
| CN105999517A (en) * | 2015-03-27 | 2016-10-12 | 朝日英达科株式会社 | Balloon catheter |
| CN105999517B (en) * | 2015-03-27 | 2020-02-18 | 朝日英达科株式会社 | Balloon catheter |
| CN111228632A (en) * | 2015-03-27 | 2020-06-05 | 朝日英达科株式会社 | Balloon catheter |
| CN111228632B (en) * | 2015-03-27 | 2022-05-31 | 朝日英达科株式会社 | Balloon catheter |
| CN108276638A (en) * | 2017-12-29 | 2018-07-13 | 深圳职业技术学院 | A kind of tubing and preparation method thereof with X-ray developing function |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1721631B1 (en) | 2009-02-18 |
| CN1868552B (en) | 2010-05-12 |
| ATE422929T1 (en) | 2009-03-15 |
| US20060259011A1 (en) | 2006-11-16 |
| US8157790B2 (en) | 2012-04-17 |
| EP1721631A1 (en) | 2006-11-15 |
| US8486048B2 (en) | 2013-07-16 |
| JP4771456B2 (en) | 2011-09-14 |
| DE602006005189D1 (en) | 2009-04-02 |
| US20120172841A1 (en) | 2012-07-05 |
| JP2006314623A (en) | 2006-11-24 |
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